Description

Jackpacks are pack pre-stressing units which are used to pre-stress timber or cementitous mats, elongate clusters or other packs that are used for supporting the hanging wall. Jackpacks are manufactured from two steel sheets cut in various profiles. The sheets are welded together to form an inflatable steel pillow. An integral valve unit allows the filler nozzle to be connected for installation and can either seal the internal pressure or allow for controlled pressure release after installation.

Advantages of Jackpacks

• Easy to install
• Immediate pre-stressing of the hanging
• Active support reduces blast-out of pack support

Range

• Jackpacks are manufactured in several sizes and shapes including Rectangular, Square and Teardrop.
• Jackpacks can be provided with or without an internal pressure relief valve.

Risk Assessment Guidelines
Download Risk Assessment
Guidelines
for Jackpacks

Safety Tips
Download Jackpack related safety tips:

19. Remove plastic cap from Jackpack button